what is the difference between AC choke (inductor) and DC
choke (inductor), working and design point of view?

Answers were Sorted based on User's Feedback

what is the difference between AC choke (inductor) and DC choke (inductor), working and design poi..

Answer / rajkumar

In a online ups (not transformerless type) u can see dc
choke is used in ripple reduction at the output of
rectifier.this is in input section of the ups.thn comes the
battery bank, i mean dc bus line. then inverter section.in
the inverter section ac choke is been used with the LC
filter to attenuate high frequency. so the filter is in
resonance mode to get a 50 HZ output.normal the behaviour
of choke is same irrespective of the place where it being
used. but according to funtions it does we can say dc choke
and ac choke.

Is This Answer Correct ?    17 Yes 7 No

what is the difference between AC choke (inductor) and DC choke (inductor), working and design poi..

Answer / eqbal_asif123


A power-supply filter whose inductance is used to limit the
flow of AC while allowing the flow of DC. Chokes naturally
maintain a more constant flow of current. Output voltages
do not rise as high as they would without this inductor in
the circuit; neither does it drop as low when compared to a
capacitor input filter circuit. Chokes hold the variation
of output voltage (ripple) to a relatively small value.



A number of turns of insulated wire wound around a form of
insulating material which may or may not include an iron
core. Some coils are rigid enough to be self-supporting and
do not require a winding form and/or a core to secure it. A
coil is also known as an inductor. Inductors possess the
property of having considerable opposition to the flow of
AC while allowing DC to pass through the flow.

There is nothing like AC or DC chokes.

Is This Answer Correct ?    22 Yes 19 No

Post New Answer

More Electrical Engineering Interview Questions

What is difference between safe PLC and normal PLC

0 Answers  

according to ohms law ,the voltage increases then current is what happened?

4 Answers   NTPC,

a 25kvar capacitor bank connected to the secondary side of transformer.then why the capacitor draws more current then rated

3 Answers   TATA,

What is sunrise meeting ?

1 Answers   KSEB,

transformer spections :: input voltage 0-110-230v; output volage 0-10-12-14v; amp=3A using CRNO CORE, capcaity=50VA primary turns = ? ; secondry turns =?

0 Answers   Bhel,

Different STANDARDS (BS, IS, IEC etc) gives different informations on CT specification. How they correspons w r t each other (i.e I mean to say BS provides "knee point voltage" but IS does not, then how can i select CT)

0 Answers  

how to select energy meter? have any calculation?

0 Answers  

why booster transformer is used in sumpners test conducted on transformer????

0 Answers   Cooper,

what efficiency of transformer at 100% load

0 Answers   Emerson,

What is depreciation factor?

0 Answers   HCC,

in 5 mva transformer 33/11 kv s/s what rating of capacitor bank is required & what is the fourmula for rating

6 Answers  

What is power focter ?

6 Answers  

  • Civil Engineering Interview Questions Civil Engineering (5069)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4440)
  • Electrical Engineering Interview Questions Electrical Engineering (16577)
  • Electronics Communications Interview Questions Electronics Communications (3915)
  • Chemical Engineering Interview Questions Chemical Engineering (1091)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (214)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (258)
  • Instrumentation Interview Questions Instrumentation (2986)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (122)
  • Power Plant Engineering Interview Questions Power Plant Engineering (170)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (0)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1376)